I won't be at the opener this year, as I now have two kids in college. But, whenever we go to the Dome for anything Rams related, we always go to Lumiere beforehand. On game days, they charge you $30 for parking, but if you spend that much in the casino gaming, or eating, or shopping you get your money back. So, it's you're parking for free. We always eat at the Stadium Club...good food at a reasonable price. They also have a number of screens in the place, so you can watch any sporting event you want.
A LOT of Rams fans are there before the game...it's a great atmosphere. I highly recommend it.
Have a great trip and bring us a winner!
Also, make sure your wife only brings a clear bag into the Dome...purses still not allowed. I always keep mine in the truck of my car and carry credit cards and cash in my pockets.